I have been trying to implement Oauth 2.0 in my org and my requirement is to use Named credentials only when making a apex callout. I am using Named credentials, Oauth, Connected Apps and auth. provider to establish a connection with an external Salesforce org. The external org has exposed an apex class as REST service that I am trying to access using my org. I have followed the steps given in this link to setup everything :
SF allowed the usage of Named Credentials with SOAP callouts but the documentation doesn’t really go into details of how to pass/access the Username and Password to the stub.inputHttpHeaders_x . I have a webservice that uses basic authentication and I need to pass the details as below.